<title> 文理分班</title><link href="http://hzoi.com/tomorrow.css" rel="stylesheet"><div class="ui existing segment"><pre><code><span class="pl-cp">#include</span> <span class="pl-cpf">&lt;algorithm&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#include</span> <span class="pl-cpf">&lt;cmath&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#include</span> <span class="pl-cpf">&lt;cstdio&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#include</span> <span class="pl-cpf">&lt;cstring&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#include</span> <span class="pl-cpf">&lt;iostream&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#include</span> <span class="pl-cpf">&lt;vector&gt;</span><span class="pl-cp"></span>
<span class="pl-k">using</span> <span class="pl-k">namespace</span> <span class="pl-n">std</span><span class="pl-p">;</span>
<span class="pl-k">const</span> <span class="pl-kt">int</span> <span class="pl-n">maxn</span> <span class="pl-o">=</span> <span class="pl-mf">1e3</span> <span class="pl-o">+</span> <span class="pl-mi">500</span><span class="pl-p">,</span> <span class="pl-n">INF</span> <span class="pl-o">=</span> <span class="pl-mh">0x3f3f3f3f</span><span class="pl-p">;</span>
<span class="pl-kt">int</span> <span class="pl-n">n</span><span class="pl-p">,</span> <span class="pl-n">m</span><span class="pl-p">,</span> <span class="pl-n">t</span><span class="pl-p">,</span> <span class="pl-n">vis</span><span class="pl-p">[</span><span class="pl-n">maxn</span><span class="pl-p">],</span> <span class="pl-n">match</span><span class="pl-p">[</span><span class="pl-n">maxn</span><span class="pl-p">],</span> <span class="pl-n">a</span><span class="pl-p">[</span><span class="pl-n">maxn</span><span class="pl-p">],</span> <span class="pl-n">b</span><span class="pl-p">[</span><span class="pl-n">maxn</span><span class="pl-p">],</span> <span class="pl-n">p</span><span class="pl-p">[</span><span class="pl-n">maxn</span><span class="pl-p">][</span><span class="pl-n">maxn</span><span class="pl-p">];</span>
<span class="pl-n">vector</span><span class="pl-o">&lt;</span><span class="pl-kt">int</span><span class="pl-o">&gt;</span> <span class="pl-n">g</span><span class="pl-p">[</span><span class="pl-n">maxn</span><span class="pl-p">];</span>
<span class="pl-kt">bool</span> <span class="pl-nf">find</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">u</span><span class="pl-p">)</span> <span class="pl-p">{</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;</span> <span class="pl-n">g</span><span class="pl-p">[</span><span class="pl-n">u</span><span class="pl-p">].</span><span class="pl-n">size</span><span class="pl-p">();</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-p">{</span>
        <span class="pl-kt">int</span> <span class="pl-n">v</span> <span class="pl-o">=</span> <span class="pl-n">g</span><span class="pl-p">[</span><span class="pl-n">u</span><span class="pl-p">][</span><span class="pl-n">i</span><span class="pl-p">];</span>
        <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-o">!</span><span class="pl-n">vis</span><span class="pl-p">[</span><span class="pl-n">v</span><span class="pl-p">])</span> <span class="pl-p">{</span>
            <span class="pl-n">vis</span><span class="pl-p">[</span><span class="pl-n">v</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span>
            <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">match</span><span class="pl-p">[</span><span class="pl-n">v</span><span class="pl-p">]</span> <span class="pl-o">==</span> <span class="pl-mi">0</span> <span class="pl-o">||</span> <span class="pl-n">find</span><span class="pl-p">(</span><span class="pl-n">match</span><span class="pl-p">[</span><span class="pl-n">v</span><span class="pl-p">]))</span> <span class="pl-p">{</span>
                <span class="pl-n">match</span><span class="pl-p">[</span><span class="pl-n">v</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-n">u</span><span class="pl-p">;</span>
                <span class="pl-k">return</span> <span class="pl-mi">1</span><span class="pl-p">;</span>
            <span class="pl-p">}</span>
        <span class="pl-p">}</span>
    <span class="pl-p">}</span>
    <span class="pl-k">return</span> <span class="pl-mi">0</span><span class="pl-p">;</span>
<span class="pl-p">}</span>
<span class="pl-kt">int</span> <span class="pl-nf">main</span><span class="pl-p">()</span> <span class="pl-p">{</span>
    <span class="pl-n">scanf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d&quot;</span><span class="pl-p">,</span> <span class="pl-o">&amp;</span><span class="pl-n">t</span><span class="pl-p">);</span>
    <span class="pl-k">while</span> <span class="pl-p">(</span><span class="pl-n">t</span><span class="pl-o">--</span><span class="pl-p">)</span> <span class="pl-p">{</span>
        <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;</span> <span class="pl-n">maxn</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-n">g</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">clear</span><span class="pl-p">();</span>
        <span class="pl-n">scanf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d&quot;</span><span class="pl-p">,</span> <span class="pl-o">&amp;</span><span class="pl-n">n</span><span class="pl-p">);</span>
        <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">n</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-n">scanf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d&quot;</span><span class="pl-p">,</span> <span class="pl-o">&amp;</span><span class="pl-n">a</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]);</span>
        <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">n</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-p">{</span>
            <span class="pl-n">scanf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d&quot;</span><span class="pl-p">,</span> <span class="pl-o">&amp;</span><span class="pl-n">b</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]);</span>
            <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">b</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">!=</span> <span class="pl-mi">0</span> <span class="pl-o">&amp;&amp;</span> <span class="pl-n">b</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">!=</span> <span class="pl-mi">1</span><span class="pl-p">)</span> <span class="pl-n">b</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">;</span>
            <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">a</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">==</span> <span class="pl-mi">1</span> <span class="pl-o">&amp;&amp;</span> <span class="pl-n">b</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">==</span> <span class="pl-mi">0</span><span class="pl-p">)</span> <span class="pl-n">g</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">push_back</span><span class="pl-p">(</span><span class="pl-n">i</span><span class="pl-p">);</span>
        <span class="pl-p">}</span>
        <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">n</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-p">{</span>
            <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">j</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">j</span> <span class="pl-o">&lt;=</span> <span class="pl-n">n</span><span class="pl-p">;</span> <span class="pl-n">j</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-p">{</span>
                <span class="pl-kt">int</span> <span class="pl-n">x</span><span class="pl-p">;</span>
                <span class="pl-n">scanf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d&quot;</span><span class="pl-p">,</span> <span class="pl-o">&amp;</span><span class="pl-n">x</span><span class="pl-p">);</span>
                <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">x</span> <span class="pl-o">==</span> <span class="pl-mi">1</span> <span class="pl-o">&amp;&amp;</span> <span class="pl-n">a</span><span class="pl-p">[</span><span class="pl-n">j</span><span class="pl-p">]</span> <span class="pl-o">==</span> <span class="pl-mi">1</span><span class="pl-p">)</span> <span class="pl-p">{</span>
                    <span class="pl-n">g</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">push_back</span><span class="pl-p">(</span><span class="pl-n">j</span><span class="pl-p">);</span>
                <span class="pl-p">}</span>
            <span class="pl-p">}</span>
        <span class="pl-p">}</span>
        <span class="pl-kt">bool</span> <span class="pl-n">flag</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">;</span>
        <span class="pl-n">memset</span><span class="pl-p">(</span><span class="pl-n">match</span><span class="pl-p">,</span> <span class="pl-mi">0</span><span class="pl-p">,</span> <span class="pl-k">sizeof</span><span class="pl-p">(</span><span class="pl-n">match</span><span class="pl-p">));</span>
        <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">n</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-p">{</span>
            <span class="pl-n">memset</span><span class="pl-p">(</span><span class="pl-n">vis</span><span class="pl-p">,</span> <span class="pl-mi">0</span><span class="pl-p">,</span> <span class="pl-k">sizeof</span><span class="pl-p">(</span><span class="pl-n">vis</span><span class="pl-p">));</span>
            <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-o">!</span><span class="pl-n">a</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">||</span> <span class="pl-p">(</span><span class="pl-n">a</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">&amp;&amp;</span> <span class="pl-o">!</span><span class="pl-n">b</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]))</span> <span class="pl-p">{</span>
                <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-o">!</span><span class="pl-n">find</span><span class="pl-p">(</span><span class="pl-n">i</span><span class="pl-p">))</span> <span class="pl-p">{</span>
                    <span class="pl-n">cout</span> <span class="pl-o">&lt;&lt;</span> <span class="pl-s">&quot;T_T&quot;</span> <span class="pl-o">&lt;&lt;</span> <span class="pl-n">endl</span><span class="pl-p">;</span>
                    <span class="pl-n">flag</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span>
                    <span class="pl-k">break</span><span class="pl-p">;</span>
                <span class="pl-p">}</span>
            <span class="pl-p">}</span>
        <span class="pl-p">}</span>
        <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">flag</span> <span class="pl-o">==</span> <span class="pl-mi">0</span><span class="pl-p">)</span> <span class="pl-n">cout</span> <span class="pl-o">&lt;&lt;</span> <span class="pl-s">&quot;^_^&quot;</span> <span class="pl-o">&lt;&lt;</span> <span class="pl-n">endl</span><span class="pl-p">;</span>
    <span class="pl-p">}</span>
<span class="pl-p">}</span>
</cpde></pre></div>